Determination Zooplankton Spatial, Temporal and Population Structure Changes of the Bukan Dam Using Geo-statistics

Subject Areas : Biology sea

Ali Mohsenpour Azari ¹ , Feridoon Mohebbi ² , Reza Sokouti ^{3 *}

1 - National Artemia Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and ExtensionOrganization (AREEO), Urmia, Iran.
2 - National Artemia Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and ExtensionOrganization (AREEO), Urmia, Iran.
3 - Soil Conservation and Watershed Management Research Department, West Azarbaijan Agricultural and Natural Resources Research Center, AREEO, Urmia, Iran

Received: 2016-08-04 Accepted : 2017-11-08 Published : 2020-02-20

Keywords: geo-statistics, Zooplankton, Bukan dam, Spatial Changes,

Abstract :

Background and Objective: This study was performed to investigate the spatial and temporal changes of the zooplankton population in the Bukan reservoir and to map these variations for agricultural and fisheries exploitation. Method: The samples were taken monthly from eight sampling sites during 2015. The samples were filtered through a 55-micron mesh size filter, fixed by 4% formalin and enumerated by an inverted microscope. Geo-statistics interpolation method in GIS (GS+ software) was used to reveal spatial changes of zooplankton and to estimate it in non-sampled points. The cross validation method was used to evaluate and compare the geostatistical methods. Findings: Spherical model fitness on the empirical semi-variogram of zooplankton density in the winter provided the results that indicated the radius of semi- variogram effect is 7280 m. The correlation coefficient of the fitted model was 0.995. The Kriging method with error of -53.42 was selected as a suitable model for spatial assessment of zooplankton density. Discussion and Conclusion: Most of the zooplankton population is in the summer and the lowest was seen in the spring. The maximum number of zooplanktons at the beginning of the Bukan dam which regularly reduced towards end of the dam.

References:

1. Adolf, J. E., Yeager, C. L., Miller, W. D., Mallonnee, M. E., and Harding, L. W. 2006. Environmental Forcing of Phytoplankton Floral Composition, Biomass, and Primary Productivity in Chesapeake Bay, USA. Estuarine, Coastal, and Shelf Science, 67, 08- 122.

        2.        Bakhtiari, N., Farhadian, A. Sufiani, N. Mohammadi, M., 2012. Investigation on the Composition and Abundance of Phytoplankton and Zooplankton in Pond Shale (Litopenaeus vannamei), J. Fisheries (Iranian Natural Resources): V. 65, No. 3, pp. 257-269. (in persian)

3. Dejen, E.; Vijverberg, J.; Nagelkerke, Leo A. J.; Sibbing, F. A.2004. Temporal and spatial distribution of microcrustacean zooplankton in relation to turbidity and other environmental factors in a large tropical lake L. Tana, Ethiopia. Hydrobiologia, 5, 13, 39-49.


4. Farhadian, A., 2014, Distribution and Frequency of Mesozooplankton Mesozooplankton in Kianshah Dam M.Sc. Thesis. Isfahan University of Technology - Faculty of Agriculture and Natural Resources. 106 pages. (in persian)


5. Hagh-parast, S. Ghorbani, R, Wasaghi, M. J., 2014, Population diversity and abundance study of Gomishan wetland zooplankton and its relationship with environmental factors J. of Animal Ecology V. 6, No. 4, pp. 195-208. (in persian)

        6.        Hedayatifard, M. Mousavi Nadoshan, R. Kham-Khaji, N. Wahidi, F. 2011. Investigation of Trend Changes in Zooplankton Density by Chlorophyll a Concentration in Lake Welcht, Journal of Aquatic and Fisheries V. 2, No. 6, pp. 58-65. (in persian)

7. Jude, B.A., Kirn, T.J., Taylor R.K. 2005. "A colonization factor links Vibrio cholerae environmental survival and human infection". Nature 438.

        8.        Kham-Khaji, N. Hedayatifard, M. Mousavi Nadoshan, R. Vahidi, F., 2012. Investigation of Trend Changes in Coupe Puddle Group in Lake Welcht, J. Environmental Science and Engineering, V. 5, No. 53, pp. 103-110.  (in persian)

9. Khodaparast, n. Roohi, A. Shapuri, M. Roshan Tabari, M. Rahmati, R. Nasrollahzadeh Saravi, H. Vahedi, F., 2012, Investigation on species composition and population structure of zooplankton in different depths of southern Caspian Sea (Amirabad, Noshahr and Anzali trade zones) after invasive sea biology, J. Sea Biology, V. 4, No. 15; pp 1-12. (in persian)


10. Kimmel, D. G., Roman, M. R., and Zhang X. 2006. Spatial and Temporal Variability in Factors Affecting Mesozooplankton Dynamics in Chesapeake Bay: Evidence from Biomass Size Spectra. Limnology and Oceanography, 51(1), 131-141.

       11.      Marcos Llope, 2011. Spatial variability of the plankton trophic interaction in the North Sea: a new feature after the early 1970s. DOI: 10.1111/j.1365-2486.2011.02492.

12. McGehee, D.E., Demer, D.A., and Warren, J.D. 2004. Zooplankton in the Ligurian Sea: Part I. Characterization of their Dispersion, Relative Abundance and Environment. J. of Plankton Research, 26(12):1409-1418.


13. Mohsen Pour Azari, A. Mohebbi F, 2010, Investigation of the Diversity and Distribution of Zooplankton in Lake Boukan, National Conference on Biodiversity and its Impact on Agriculture and Environment, Urmia. pp. 187-191. (in persian)


14. Rabindranath, Ananda 2013 Investigations into temporal and spatial variability of zooplankton at the Svalbard archipelago, PhD Thesis, 128 pages, URI http://hdl.handle.net/10023/3814


15. Riina Klais, Maiju Lehtiniemi, Gunta Rubene, Anna Semenova, Piotr Margonski, Anda Ikauniece, Mart Simm, Arno Põllumäe, Evelina Grinienė, Katja Mäkinen and Henn Ojaveer. 2016. Spatial and temporal variability of zooplankton in a temperate semi-enclosed sea: implications for monitoring design and long-term studies J. Plankton Res. (2016) doi: 10.1093/plankt/fbw022.


16. Sokouti Skouee, R. Kolahchi, R., Jabari, A, Mehdian M. H., 2011, Geostatistical Application for Surveying Groundwater Changes in the Urmia Plain, National Conference on Climate Change and its Impact on Agriculture and the Environment, pp. 69-73. (in persian)


17. Steven A. Pothoven, Gary L. Fahnenstie.2015. Spatial and temporal trends in zooplankton assemblages along a nearshore to offshore transect in southeastern Lake Michigan from 2007 to 2012 Journal of Great Lakes Research Volume 41, Supplement 3, 2015, Pages 95–103

       18.      Villate, F. 2005. Temporal variability of the spatial distribution of the zooplankton community in a coastal embayment of the basque country in relation to physical phenomena. V 288, No 2 / DOI 10.1007/BF00007128, Pages 79-95

19. Ying Ming 2010 A Study on Determining the Sample Size in Geostatistics Masters Thesis, 98 pages, Department of Mathematical and Statistical Sciences, University of Alberta.